摘要
An all-reflective self-referenced spectral interferometry based on the transient grating(TG)effect is proposed for single-shot measuring of the amplitude and phase of ultrashort pulses in a broadband spectral range.Except for a thin third-order nonlinear medium,which was used to generate the TG signal,no transmitted optics were used in the proposed device,and few-cycle pulses in a broad spectral range from deep UV to mid-IR can be characterized.With a homemade compact and alignment-free device,a 5.0 fs pulse at 800 nm corresponding to about two cycles and a 14.3 fs pulse at 1800 nm corresponding to less than three cycles were successfully characterized.
作者
Zhe Si
Xiong Shen
Jingxin Zhu
Lei Lin
Lihua Bai
Jun Liu
司哲;申雄;朱晶鑫;林磊;白丽华;刘军(Department of Physics,Shanghai University,Shanghai 200444,China;State Key Laboratory of High Field Laser Physics,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China;Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China)
基金
supported by the Natural Science Foundation of Shanghai(No.18ZR1413600)
the National Natural Science Foundation of China(NSFC)(Nos.61521093 and 61527821)
the Instrument Developing Project of the Chinese Academy of Sciences(No.YZ201538)
the Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDB160106)
the Shanghai Municipal Science and Technology Major Project(No.2017SHZDZX02).